Check if text is in a string

Question

I want to check is some text is in a string for instance i have a string

str = \"car, bycicle, bus\"

and I have another string

Answer 1

if(str.indexOf(str2) >= 0) {
   ...
}

Or if you want to go the regex route:

if(new RegExp(str2).test(str)) {
  ...
}

However you may face issues with escaping (metacharacters) in the latter, so the first route is easier.